/*
 * Licensed to Metamarkets Group Inc. (Metamarkets) under one
 * or more contributor license agreements. See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership. Metamarkets licenses this file
 * to you under the Apache License, Version 2.0 (the
 * "License"); you may not use this file except in compliance
 * with the License. You may obtain a copy of the License at
 *
 * http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing,
 * software distributed under the License is distributed on an
 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
 * KIND, either express or implied. See the License for the
 * specific language governing permissions and limitations
 * under the License.
 */

package io.druid.security.kerberos;

import com.google.inject.Inject;
import com.google.inject.Injector;
import com.google.inject.Provider;
import com.metamx.http.client.HttpClient;
import io.druid.guice.http.AbstractHttpClientProvider;

public class KerberosHttpClientProvider extends AbstractHttpClientProvider<HttpClient>
{
  private final Provider<HttpClient> delegateProvider;
  private AuthenticationKerberosConfig config;

  public KerberosHttpClientProvider(
    Provider<HttpClient> delegateProvider
  )
  {
    this.delegateProvider = delegateProvider;
  }

  @Inject
  @Override
  public void configure(Injector injector)
  {
    if (delegateProvider instanceof AbstractHttpClientProvider) {
      ((AbstractHttpClientProvider) delegateProvider).configure(injector);
    }
    config = injector.getInstance(AuthenticationKerberosConfig.class);
  }

  @Override
  public HttpClient get()
  {
    return new KerberosHttpClient(delegateProvider.get(), config);
  }
}
